NXP Semiconductors TDA8029HL/C207,118
- Part No.:
- TDA8029HL/C207,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 32-LQFP
- Datasheet:
-
TDA8029HL/C207,118.pdf
- Description:
- IC INTERFACE SPECIALIZED 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TDA8029HL/C207 from NXP Semiconductors is a single-chip, low-power smart card reader IC integrating an 80C51 microcontroller (16 kB ROM, 256 B RAM, 512 B XRAM), ISO/IEC 7816-3 UART with T=0/T=1 protocol support, programmable card clock up to 20 MHz, and DC-to-DC converter for 2.7–6.0 V input. It delivers EMV-compliant card activation/deactivation sequences and operates in portable card readers requiring robust contact-based transaction handling.
For engineers reviewing the TDA8029HL/C207 datasheet, TDA8029HL/C207 pinout, TDA8029HL/C207 application, or TDA8029HL/C207 equivalent, key selection criteria include its embedded 80C51 core with dedicated ETU timing hardware, ISO7816 UART with automatic convention processing, shut-down current ≤20 μA, VCC slew rate control (0.05–0.22 V/μs), and LQFP32 package compatibility with card interface layout constraints.
Technical Context
The TDA8029HL/C207 implements a dedicated 24-bit Elementary Time Unit (ETU) counter for precise Answer-to-Reset (ATR) timing and T=1 protocol block guard time (22 ETU) and T=0 guard time (16 ETU). Its ISO7816 UART supports MOVX-accessible register mapping, character-level error management, and variable baud rate generation via Timer 2 in baud-rate generator mode.
Power architecture includes a configurable DC-to-DC converter (doubler/tripler/follower) driving VCC with controlled rise/fall times, plus independent sequencer for automatic card activation (<225 μs) and deactivation (<100 μs). The embedded 80C51FB core enables wake-up from Power-down mode on falling edges at INT0_N, INT1_N, or RX with integrated delay counter-critical for low-power polling in battery-operated readers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 80C51FB MCU with 16 kB ROM, 256 B RAM, 512 B XRAM - enables full ISO7816 stack execution without external memory |
| Card supply voltage (VCC) | Programmable 1.8 V / 3.0 V / 5.0 V output with ±5% tolerance - supports all ISO7816 voltage classes |
| Supply voltage range (VDD) | 2.7 V to 6.0 V - allows direct operation from single Li-ion, dual AA, or USB-powered rails |
| Shut-down current | ≤20 μA at VDD = 3.3 V - enables multi-year battery life in standby-mode portable readers |
| Card clock frequency | Up to 20 MHz with 1×, 2×, 4×, 8× division - meets EMVCo 4.3 timing requirements for high-speed transactions |
| ISO7816 UART | Hardware-accelerated T=0/T=1 with 1–8 char FIFO, parity error counter, auto-retransmission - eliminates host CPU overhead for protocol handling |
| ETU timing resolution | Dedicated 24-bit ETU counter with 11.8 ETU (T=0) / 10.8 ETU (T=1) inter-character minima - ensures strict compliance with ISO7816-3 timing windows |
Pinout & Package
LQFP32 package (7 × 7 × 1.4 mm, SOT358-1); 32-pin quad flat with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 11) | Card power output | Regulated 1.8/3.0/5.0 V supply to smart card contacts (C1), slew-controlled for EMVCo transient compliance |
| RST (Pin 12) | Card reset output | Active-HIGH reset signal to card (C2) synchronized with activation sequence timing |
| CLK (Pin 10) | Card clock output | Programmable-frequency clock (up to 20 MHz) to card (C3) with synchronous frequency doubling capability |
| I/O (Pin 7) | Card data I/O | Bidirectional data line (C7) with 14 kΩ internal pull-up to VCC - eliminates external resistor in standard designs |
| PRES (Pin 8) | Card presence input | Active-HIGH detection of mechanical switch closure (C6) - no external bias required |
| P30/RX (Pin 32) | Host serial input | Asynchronous full-duplex UART receive line (TTL level) for host command ingestion |
| P31/TX (Pin 31) | Host serial output | Asynchronous full-duplex UART transmit line (TTL level) for status/response reporting |
| SDWN_N (Pin 5) | Shut-down control | Active-LOW enable for ultra-low-power mode (≤20 μA); no internal pull-up - requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated ISO7816 UART | Hardware-managed T=0/T=1 protocols with MOVX register access, eliminating software bit-banging and ensuring deterministic timing |
| 24-bit ETU counter | Independent timing engine for ATR, BGT, and waiting times - guarantees sub-ETU accuracy without CPU intervention |
| Configurable DC-to-DC converter | Single-inductor doubler/tripler/follower topology supporting 2.7–6.0 V input to generate VCC - reduces bill-of-materials vs. discrete solutions |
| EMVCo 4.3-compliant sequencer | Hardwired activation/deactivation logic meeting EMVCo 4.3 timing specs (tact ≤225 μs, tde ≤100 μs) - removes firmware validation burden |
| Wake-up from Power-down | Falling-edge triggered on INT0_N, INT1_N, or RX with internal delay counter - enables instant card detection without periodic polling |
Applications
| EMV-Compliant Payment Terminal | Portable ID Authentication Reader |
|---|---|
Use Scenario: Contact-based chip card transaction in handheld POS terminals operating on single-cell lithium batteries. IC Role / Device Role / Timing Role: Primary smart card interface controller managing VCC ramp, ATR, T=0/T=1 protocol exchange, and secure channel establishment. Use Value: Enables <20 μA shut-down current and EMVCo 4.3-compliant activation timing - extends battery life while meeting payment certification requirements. | Use Scenario: Government-issued eID card reading in field-deployed border control tablets. IC Role / Device Role / Timing Role: Standalone card interface IC executing ISO7816-3 timing-critical sequences without host CPU involvement. Use Value: Delivers guaranteed 11.8 ETU (T=0) inter-character spacing and 22 ETU BGT - satisfies national eID scheme timing mandates. |
| Secure Access Control Reader | Healthcare Smart Card Terminal |
Use Scenario: Wall-mounted physical access system using contact smart cards for employee authentication. IC Role / Device Role / Timing Role: Integrated card power manager and protocol handler interfacing with microcontroller over UART. Use Value: Provides 6 kV ESD protection on card contacts and controlled VCC slew rate - ensures reliability in high-touch public installations. | Use Scenario: Hospital bedside terminal reading patient health insurance cards compliant with national healthcare standards. IC Role / Device Role / Timing Role: Low-power card interface IC supporting 1.8 V, 3 V, and 5 V cards with automatic voltage class detection. Use Value: Eliminates need for external level shifters or voltage selectors - simplifies design for multi-voltage card ecosystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card reader IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670 | Trusted Platform Module (TPM) with integrated smart card controller; lacks embedded 80C51 and standalone card sequencing logic | Designed for PC platform security, not portable card readers; requires host OS driver stack | Select only when TPM functionality and cryptographic acceleration are primary requirements over low-power standalone operation |
| ST21NF08 | STM32-based secure microcontroller with ISO7816 peripheral; no dedicated ETU counter or hardware sequencer | Requires firmware implementation of EMVCo timing sequences; higher BOM cost due to external crystal and regulators | Prefer when application demands ARM Cortex-M real-time processing alongside card interface, not pure low-power reader function |
Compared with SLB9670 and ST21NF08, the TDA8029HL/C207 uniquely integrates a purpose-built 80C51 core, hardware ETU counter, and EMVCo-compliant sequencer in one LQFP32 package-enabling certified, ultra-low-power smart card reading without host dependency or firmware timing validation.
Availability
TDA8029HL/C207 is available at Aetrix Electronics and suitable for EMV-compliant payment terminals, portable ID authentication readers, and secure access control systems requiring stable component supply across industrial lifecycle durations.
Supply support for TDA8029HL/C207 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The TDA8029HL/C207 belongs to NXP's smart card interface IC product line, engineered specifically for low-power, EMVCo-certifiable contact-based card readers in portable and embedded systems.
FAQ
What is the maximum crystal frequency supported by the TDA8029HL/C207?
The TDA8029HL/C207 supports an external crystal frequency up to 27 MHz on XTAL1, enabling card clock generation up to 20 MHz via internal frequency division. This allows full compliance with EMVCo 4.3 high-speed transaction requirements while maintaining stable oscillator operation across -40 °C to +90 °C ambient temperatures.
Does the TDA8029HL/C207 support both T=0 and T=1 smart card protocols?
Yes, the TDA8029HL/C207 natively supports both T=0 and T=1 protocols per ISO/IEC 7816-3, including automatic convention processing, character-level error management, and variable baud rate generation. Its dedicated ISO7816 UART handles protocol framing, parity checking, and retransmission-ensuring reliable communication with all standard contact smart cards.
How does the TDA8029HL/C207 achieve ultra-low power consumption in shut-down mode?
The TDA8029HL/C207 achieves ≤20 μA shut-down current at VDD = 3.3 V by disabling all internal clocks, analog blocks, and digital logic except the SDWN_N input circuitry. This state is entered via active-LOW assertion on Pin 5 and maintains pin states for fast wake-up-making it ideal for battery-powered card readers requiring multi-year standby life.
What is the role of the 24-bit ETU counter in the TDA8029HL/C207?
The dedicated 24-bit ETU counter in the TDA8029HL/C207 provides hardware-accurate timing for Answer-to-Reset (ATR), Block Guard Time (22 ETU for T=1, 16 ETU for T=0), and inter-character delays (11.8 ETU for T=0, 10.8 ETU for T=1). It operates independently of the 80C51 core, guaranteeing ISO7816-3 timing compliance without CPU overhead or firmware calibration.
Can the TDA8029HL/C207 generate card clock frequencies other than the standard 1 MHz, 2 MHz, 4 MHz, and 8 MHz?
Yes, the TDA8029HL/C207 supports programmable card clock frequencies up to 20 MHz using its internal frequency divider (1×, 2×, 4×, 8×) driven by the XTAL1 input. For example, with a 20 MHz crystal, it can output 20 MHz, 10 MHz, 5 MHz, or 2.5 MHz-enabling optimization for speed, power, or legacy card compatibility beyond fixed nominal rates.
TDA8029HL/C207,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Smart Card
- Interface:
- Serial
- Voltage - Supply:
- 2.7V ~ 6V
- Supplier Device Package:
- 32-LQFP (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA8029HL/C207,118 FAQ
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6.How does Aetrix verify that TDA8029HL/C207,118 is sourced from the original manufacturer or authorized distributors?
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7.What is the process for return or replacement of TDA8029HL/C207,118?
All TDA8029HL/C207,118 units undergo pre-shipment inspection (PSI). If there is an issue with TDA8029HL/C207,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TDA8029HL/C207,118 part is unused and in its original packaging.
Return procedure for TDA8029HL/C207,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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